Thermochemistry Assessment

When a test tube feels hot to the touch, this process is:

• Exothermic
• Endothermic

When a system releases energy, this process is:

• Exothermic
• Endothermic

When the reactants have more energy than the products, this process is:

• Exothermic
• Endothermic

When ΔH is positive, this process is:

• Exothermic
• Endothermic

When the test tube feels cold to the touch, the process is:

• Exothermic
• Endothermic

When the system absorbs energy, the process is:

• Exothermic
• Endothermic

Determine the amount of energy, in joules, needed to raise the temperature of 680g of water from a temperature of 12 °C to 58 °C. (Specific heat for water is 4.184 J/g ∙°C)

If the specific heat of iron is 0.449 J/g ∙ °C, how much heat is transferred from a 3290 g piece of iron as it cools from 210 °C down to 12 °C?

Determine the specific heat of a metal if a 640 g sample loses 36,400 J of energy as its temperature drops by 98 °C.

A 250 g sample of water gains 8450 joules of heat energy. If the initial temperature of the water was 10 °C, what was the final temperature of the water? (Specific heat for water is 4.184 J/g ∙°C)