In the equation q = m c ΔT, what is q when ΔT is zero?

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Multiple Choice

In the equation q = m c ΔT, what is q when ΔT is zero?

Explanation:
The quantity q represents heat transfer and depends on how much the temperature changes. In the equation q = m c ΔT, if there is no temperature change (ΔT = 0), the product becomes m c × 0, which is zero. This means no heat is exchanged, regardless of how much mass you have or how high the substance’s specific heat capacity is. The only thing that would force a nonzero q is a nonzero ΔT. So, when ΔT is zero, q must be zero.

The quantity q represents heat transfer and depends on how much the temperature changes. In the equation q = m c ΔT, if there is no temperature change (ΔT = 0), the product becomes m c × 0, which is zero. This means no heat is exchanged, regardless of how much mass you have or how high the substance’s specific heat capacity is. The only thing that would force a nonzero q is a nonzero ΔT. So, when ΔT is zero, q must be zero.

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