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2. The temperature doubles.

014) 48.6 J

015) 13,700 J

016) 5.94×10⁻²¹ J

Explanation:

PV = nRT

P and n are constant.

nR/P = k

V/T = k

If the volume doubles, the temperature also doubles.

014) The kinetic energy per atom is:

KE = 3/2 kT

KE = 3/2 (1.38×10⁻²³ J/K) (21 + 273) K

KE = 6.09×10⁻²¹ J

The total kinetic energy is:

KE = (6.09×10⁻²¹ J) (7.99×10²¹)

KE = 48.6 J

016) The kinetic energy per atom is:

KE = 3/2 kT

KE = 3/2 (1.38×10⁻²³ J/K) (14 + 273) K

KE = 5.94×10⁻²¹ J

015) The total kinetic energy is:

KE = (5.94×10⁻²¹ J) (3.82 mol) (6.02×10²³ atom/mol)

KE = 13,700 J

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

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don't remove my answer im trying my best to answer them

explanation: