Answer:
[tex]T_2=630^{\circ}C[/tex]'
Explanation:
Original temperature of the gas, [tex]T_1=28^{\circ}C=301\ K[/tex]
From the ideal gas equation,
[tex]P_1V_1=nRT_1[/tex]
Since,
[tex]P_2=3P_1[/tex]
[tex]nRT_2=3(nRT_1)[/tex]
[tex]T_2=3T_1[/tex]
[tex]T_2=3\times 301[/tex]
[tex]T_2=903\ K[/tex]
or
[tex]T_2=630^{\circ}C[/tex]
So, the new temperature of the gas is 630 degree Celsius. Hence, this is the required solution.