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To determine the expected temperature at which the volume would be 150 cubic cm while keeping the pressure constant, we can use the ideal gas law, which states:

PV = nRT

Where: P = pressure (constant) V = volume (initial and final) n = number of moles of gas (constant) R = ideal gas constant T = temperature (initial and final)

Since the pressure and number of moles are constant, we can rewrite the equation as:

V₁ / T₁ = V₂ / T₂

Where V₁ and T₁ represent the initial volume and temperature, and V₂ and T₂ represent the final volume and temperature.

Given: V₁ = 250 cubic cm T₁ = 10°C (convert to Kelvin: T₁ = 10 + 273.15 = 283.15 K) V₂ = 150 cubic cm (final volume)

Plugging these values into the equation, we can solve for T₂:

250 / 283.15 = 150 / T₂

Cross-multiplying and rearranging the equation:

T₂ = (150 * 283.15) / 250

Calculating this expression:

T₂ = 169.89 K

Converting the temperature back to Celsius:

T₂ = 169.89 - 273.15 ≈ -103.26°C

Therefore, at a constant pressure, you would expect the volume to be 150 cubic cm at a temperature of approximately -103.26°C.

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