Agas sample has a volume of 150 ml at 0.00 ∘c. the temperature is raised (at constant pressure) until the volume is 218 ml. what is the temperature of the gas sample in ∘c at this volume?

Charles law gives the relationship between volume and temperature of a gas. 
It states that at constant pressure, volume is directly proportional to temperature of gas. 
V/ T = k
where V -volume , T - temperature and k - constant 

parameters for the first instance are given on the left side and parameters for the second instance are given on the right side of the equation 
T1 - temperature in kelvin 0.0 °C + 273 = 273 K
substituting the values in the equation 

T = 397 K 
temperature in celcius - 397 K - 273 = 124 °C
new temperature is 124 °C

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500bc indiais the answer.