A Sealed Rigitd Tank Contains 30 Moles of an Ideal $270 \mathrm {~K}$

question 48

Multiple Choice

A sealed rigitd tank contains 30 moles of an ideal gas, at an initial temperature of $270 \mathrm {~K}$ The pressure of the gas is increased until the final pressure equals 1.40 times the initial pressure. The heat capacity at constant pressure of the gas is $32.0 \mathrm {~J} / \mathrm { mol } \cdot \mathrm { K }$ What is the change in the internal (thermal) energy of the gas during this process? (R = 8.31 J/mol ? K)

• A)77 kJ
• B)100 kJ
• C)130 kJ
• D)-50 kJ
• E)-23 kJ

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Definitions:

Consistent

In mathematics, systems of equations are considered consistent if they have at least one set of solutions.

Consistent

In mathematics, particularly in systems of equations, it refers to a system that has at least one solution.

Inconsistent

A term describing systems of equations that have no solution, as their lines or planes do not intersect.

Solutions

The values or sets of values that satisfy the conditions of an equation or inequality.