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Required information

Problem $07\mathrm{.}094-$ Air in a piston$-$cylinder device

Air at $\backslash (27^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash )$ and $100$ kPa is contained in a pistoncylinder device. When the air is compressed adiabatically, a minimum work input of $\backslash (1,175\backslash$mathrm$\{$~kJ$\}\backslash )$ will increase the pressure to $600$ kPa $.$

Problem $07\mathrm{.}094.$b $-$ Mass of air accounting for the variation of specific heats with temperature

Determine the mass of air in the device accounting for the variation of specific heats with temperature. Use the table containing the ideal gas properties of air.

The mass of air in the device is kg $.$