1. A 36.0 g sample of liquid water is initially at 10.0 °C. How many kJ are required to turn it into steam at 200.0 °C? 2. How much energy is required to heat 125.0 g of ice from -15.0 °C to liquid water at 35.0°C?

3. How many kJ are needed to heat 300.0 g of ice at -5.00°C into steam at 100.°C?

4. Calculate the amount of energy removed to cool 50.0 g of steam at 135.0 °C to ice at -20.0 °C.

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.

Object a has a length of 3 cm, a width of 2 cm, and a height of 4 cm. object b is dropped into a graduated cylinder. it displaces 19 ml of water. the volume of object a is: a: greater than the volume of object b b: less than the volume of object b c: equal to the volume of object b