Good morning,

can you help me with those questions

1.

Part A You put a bottle of soft drink in a refrigerator and leave it until its temperature has dropped 13.0 K. What is its temperature change in F ? For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Body temperature. Express your answer in Fahrenheit degrees. VO AEQ ? ATF = Submit Request Answer Part B What is its temperature change in Co? Express your answer in Celsius degrees. AED ? ATC = CPart A A machinist bores a hole of diameter 1.30 cm in a steel plate at a temperature of 27.0' C. For related problem-solving tips and strategies, you may want to What is the cross-sectional area of the hole at 27.0 C. view a Video Tutor Solution of Express your answer in centimeters squared to four significant figures. Length change due to temperature change. AEd ? Ao = cm2 Submit Request Answer Part B What is the cross-sectional area of the hole when the temperature of the plate is increased to 150 C? Assume that the coefficient of linear expansion remains constant over this temperature range. Express your answer in centimeters squared to four significant figures. IVO AEQ cm A =V Part A A 400.0 g chunk of an unknown metal, which has been in boiling water for several minutes, is quickly dropped into an insulating Styrofoam beaker containing 1.00 kg of water at room Assuming that the Styrofoam absorbs a negligibly small amount of heat and that no heat was lost to the surroundings, what is the specific heat of the metal? temperature (20.0 C). After waiting and gently stirring for 5.00 Express your answer in Joules per kilogram-Kelvin. minutes, you observe that the water's temperature has reached a constant value of 22.0 . C. For related problem-solving tips and strategies, you may want to AEd ? view a Video Tutor Solution of A temperature change with no phase change. Cmetal = J / ( kg . K)Part A How much heat is required to convert 12.0 g of ice at -13.0'C to steam at 100.0 C? Express your answer in joules. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Changes in both temperature and phase. AEQ ? Q = J Submit Request Answer Part B Express your answer in calories. ? cal Q = Submit Request Answer\fV PartA A carpenter builds an exterior house wall with a layer of wood 3.2 cm thick on the outside and a layer of Styrofoam insulation 2.2 cm thick on the inside wall surface. The wood has 1:: = 0.080W/(m - K) and the Styrofoam has k = 0.010 W/(m - K). The interior surface temperature is 20.0 C, and the exterior surface temperature is -13.0 C. What is the temperature at the piane where the wood meets the Styrofoam? Express your answer in Celsius degrees. view a Video Tutor Solution of Conduction through Morbisrinicon. T=' C For related problem-solving tips and strategies. you may want to y i '7 Part B . What is the rate of heat flow per square meter through this wall? Express your answer in watts per meter squared. _ _ 7 _ 7 ,7,,,,,, 7 77..)__\\ AEQJMO? Part A A metal rod, made from metal 1, with a length of 35.0 cm expands by 6.00x10-2 cm when its temperature is raised from 0.0 C to 100.0 C. A rod of a different metal (metal 2) and of the Find the unexpanded length of the portion of the composite bar made from metal 1. same length expands by a distance of 4.00x10-2 cm for the Express your answer in centimeters. same rise in temperature. A third rod, also with a length of 35.0 cm cm, is made up of pieces of each of the above metals placed end-to-end and expands by a distance of 5.00x10-2 cm IVO AEQ ? between 0.0 C and 100.0 C. cm Submit Request Answer Part B Find the unexpanded length of the portion of the composite bar made from metal 2. Express your answer in centimeters. IVO AEQ ? 12 = cmPart A You cool a 110.0 g slug of red-hot iron (temperature 745. C) by dropping it into an insulated cup of negligible mass containing 70.0 g of water at 20.0 C. Assume no heat exchange with the What is the final temperature of the water? surroundings. Express your answer in Celsius degrees. ? Tfinal = . C Submit Request Answer Part B What is the final mass of the iron and the remaining water? Express your answer with the appropriate units. HA ? m = Value UnitsPart A A 24.0 L tank contains 4.66 x 10- kg of helium at 17.0 C. The molar mass of helium is 4.00 g/mol. How many moles of helium are in the tank? For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Volume of an ideal gas at sip. Express your answer in moles. IVO AEd ? n = mol Submit Request Answer Part B What is the pressure in the tank (in pascals)? Express your answer in pascals. AE ? Pa p =Part C What is the pressure in the tank (in atmospheres)? Express your answer in atmospheres. AEQ C monad p = atm