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a . 2 . 5 kg of liquid water initially at 1 5 C is to be heated to 9 5 C in a teapot
a kg of liquid water initially at C is to be heated to C in a teapot equipped with a W electric heating element inside. The specific heat of water can be taken to be kJkgC and the heat loss from the water during heating can be neglected. The time it takes to heat the water to the desired temperature is:
a min b min c min d min e min
b A m rigid tank is filled with saturated liquidvapor mixture of water at kPa. If of the mass is liquid and the of the mass is vapor, the total mass in the tank is:
a kg b kg c kg d kg e kg
c A m rigid tank contains nitrogen gas at kPa and K Now the gas is compressed isothermally to a volume of m The work done on the gas during this compression process is:
a kJ b kJ c kJ d kJ e kJ
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