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If the volume of a given mass of a gas at 0ºc is 2...

If the volume of a given mass of a gas at 0ºc is 29.5cm $^3$ . What will be the volume of the gas at 15ºc, given that the pressure remains constant.

A.

31.6

B.

62.2

C.

32.7

D.

31.1

View answer & explanation

Correct answer is D

Charles' law is a special case of the ideal gas law in which the pressure of a gas is constant.

Charles's law defines the direct relationship between temperature and volume.

GIVEN DATA: V $_1$ = 29.5cm $^3$ , V $_2$ = ? , T $_1$ = 0ºc or 273k, T $_2$ = 15ºc or 288k

$\frac{V_1}{T_1}$ = $\frac{V_2}{T_2}$

V $_2$ = $\frac{V_1 x T_2}{T_1}$ → $\frac{29.5 x 288}{273}$

V $_2$ = 31.1cm $^3$

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