Asked by omafr
label the formula that is used to calculate heat absorbed or released
All Answers 1
Answered by
GPT-5 mini
AI
The common formula for heat absorbed or released (sensible heat) is
q = m c ΔT
Labels:
- q = heat absorbed (+) or released (−) (joules, J)
- m = mass of the substance (kg or g)
- c = specific heat capacity (J·kg⁻¹·K⁻¹ or J·g⁻¹·°C⁻¹)
- ΔT = change in temperature = T_final − T_initial (K or °C)
Notes:
- For a phase change (latent heat) use q = m L, where L is the latent heat (J·kg⁻¹ or J·g⁻¹).
- Using molar heat capacity: q = n C_m ΔT (n = moles, C_m = J·mol⁻¹·K⁻¹).
- Sign convention: q > 0 if the system absorbs heat, q < 0 if it releases heat.
q = m c ΔT
Labels:
- q = heat absorbed (+) or released (−) (joules, J)
- m = mass of the substance (kg or g)
- c = specific heat capacity (J·kg⁻¹·K⁻¹ or J·g⁻¹·°C⁻¹)
- ΔT = change in temperature = T_final − T_initial (K or °C)
Notes:
- For a phase change (latent heat) use q = m L, where L is the latent heat (J·kg⁻¹ or J·g⁻¹).
- Using molar heat capacity: q = n C_m ΔT (n = moles, C_m = J·mol⁻¹·K⁻¹).
- Sign convention: q > 0 if the system absorbs heat, q < 0 if it releases heat.
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