Which of these expands when the temperature is lowered?

A) iron
B) wood
C) ice water
D) helium
E) none of the above


Answer: C

Physics & Space Science

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The molecular weight of a long-chain molecule is equal to the molecular weight of a ______________unit times the number of ______________units.

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

Explain how a greenhouse works

What will be an ideal response?

Physics & Space Science

Molar Specific Heats: For an ideal gas,

A. CP = CV for all ideal gases. B. CP > CV for all ideal gases. C. CP < CV for all ideal gases. D. it depends on whether the gas is monatomic or diatomic.

Physics & Space Science

Suppose that two objects collide. Which of the following things is not the same both before and after the collision?

A) the total momentum of the objects B) the total temperature of the objects C) the total energy of the objects D) the total angular momentum of the objects

Physics & Space Science