Specific Heat And Heat Transfers Question Preview (ID: 56748)

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What is the heat energy required to change 2 grams of liquid water at 100ºC to water vapor at 100ºC?

a) 334 J

b) 668 J

c) 2260 J

d) 4520 J

By which process does starlight travel through space?

a) absorption

b) conduction

c) convection

d) radiation

The diagram shows temperature values at various points in a solid piece of aluminum. Toward which point will heat flow from point P?

a) A

b) B

c) C

d) D

Which statement best describes the pattern of energy flow in a closed system?

a) Energy flows out of the system.

b) Energy flow is cyclical, so that equilibrium is never reached.

c) Energy flows from energy sinks to energy sources.

d) Energy flows from energy sources to energy sinks.

Which group of substances is arranged in order of decreasing specific heat values?

a) iron, granite, basalt

b) copper, lead, iron

c) dry air, water vapor, ice

d) liquid water, ice, water vapor

An ice cube is placed in a glass of water at room temperature. Which heat exchange occurs between the ice and the water within the first minute?

a) The ice cube gains heat and the water loses heat.

b) The ice cube loses heat and the water gains heat.

c) Both the ice cube and the water gain heat.

d) Both the ice cube and the water lose heat.

How many Joules of heat energy would be required to melt a 5-gram piece of ice at 0ºC?

a) 10.5 J

b) 334 J

c) 1670 J

d) 11500 J

Heat energy will normally flow from

a) A to B

b) A to C

c) B to D

d) D to C

By which process do light rays pass through window glass?

a) conduction

b) convection

c) radiation

d) compression

Which method of energy transfer is primarily responsible for energy being lost from Earth into space?

a) conduction

b) convection

c) solidification

d) radiation

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