Question 4 (1 point)

A particular smelting furnace is capable of delivering (3.57x10^2) kcal of heat to a solid block of lead that has previously been heated to its melting point of 328 C. If the entire block of lead is melted with no heat to spare, what is its mass?

Note: Your answer is assumed to be reduced to the highest power possible.

Your Answer:

Question 4 options:

	x10
Answer	units

Question 8 (1 point)

How much heat (in kcal) must be added to (3.90x10^-1) kg steam at 100 C to raise its temperature to 115 C?

Note: Your answer is assumed to be reduced to the highest power possible.

Your Answer:

Question 8 options:

	x10
Answer	units

Question 9 (1 point)

A cylinder of gas at 23 C is measured to have a pressure of 150,000 Pa. What would its pressure be if its temperature were raised to (7.20x10^1) C with the volume of the container remaining constant?

Note: Your answer is assumed to be reduced to the highest power possible.

Your Answer:

Question 9 options:

	x10
Answer	units

Question 10 (1 point)

A cylinder of gas at 23 C is measured to have a pressure of 150,000 Pa. What would the temperature of the gas (in Celsius) be if its pressure were raised to (2.20x10^5) Pa by heating it with the volume of the container remaining constant?

Note: Your answer is assumed to be reduced to the highest power possible.

Your Answer:

Question 10 options:

	x10
Answer	units