The temperature of a sample of copper increased by 24.7 °C when 257 J of heat was applied. What is the mass of the sample?

Calculate the amount of heat energy (in joules) needed to raise the temperature of 48.0 g of water from 30.0°C to 55.0°C. Given that q = SH x m x ΔT. The specific heat of water is 4.18 J/g oC

Calculate the amount of heat liberated (in KJ) from 366 g of mercury when it cools from 77.0 °C to 12.0°C. The specific heat of mercury is 0.139 J/g•°C.

The specific heat of a certain type of metal is 0.149 J/g°C. What is the final temperature of 367 J of heat added to 74.3g of this metal, initially at 25.3°C?

specific heat of gold is 0.129J/g C. what is molar heat capacity of gold?

How much heat must be added to a 38-g sample of aluminum to increase its temperature by 250.0°C? The specific heat capacity for aluminum is 0.902 J/g°C.

It takes 52.0 J to raise the temperature of an 9.00 g piece of unknown metal from 13.0∘C to 25.0 ∘C. What is the specific heat for the metal? Express your answer with the appropriate units.

6) A block of rhenium metal (specific heat =0.0329 cal/ gC) is heated to 88.2C and then dropped into 100.0 g of water initially at 26.4 C. The final temperature of the mixture is 32.4C. What was the mass of the block of rhenium?

A gas expands and does work on the surroundings equal to 4.92 Latm. At the same time, it releases 98.6 J of heat to the surroundings. What is the change in energy in J of the gas? (write the solution without decimals)

How many grams of an unknown substance, having a specific heat of 1.66 J g ° C, are present if a temperature change of -173.4 K occurs. The heat lost was 35981 J.