Chemistry

[patig04]

Substance A has a specific heat capacity of 0.650 J/g*K and substance B has a specific heat capacity of 0.325 J/g*K.  If 100 Jouls of heat energy is applied to a 10g sample od each substance, which substance will have a higher tempature? Why?



im lost.....

[TVP45]

Substance B, the one with the lower specific heat, will have the greater temperature rise. Specific heat tells you how much heat (in J) it takes to raise a unit mass (1 g) a unit temperature (1 K). Since the masses are the same (10 g), we can look only at 1 g of each {why can I do that?}. It takes 0.325 J to raise 1 g of substance B 1 K and it takes 0.650 J to raise substance A 1 K. So, for equal amounts of heat, B rises to a higher temperature. Now, your turn.
Give the formula for this. If you don't know the formula, use dimensional analysis. If you don't know dimensional analysis, come back and ask. So, please show your work.

[rumen]

Substance B, the one with the lower specific heat, will have the greater temperature rise. Specific heat tells you how much heat (in J) it takes to raise a unit mass (1 g) a unit temperature (1 K). Since the masses are the same (10 g), we can look only at 1 g of each {why can I do that?}. It takes 0.325 J to raise 1 g of substance B 1 K and it takes 0.650 J to raise substance A 1 K. So, for equal amounts of heat, B rises to a higher temperature. Now, your turn.
Give the formula for this. If you don't know the formula, use dimensional analysis. If you don't know dimensional analysis, come back and ask. So, please show your work.

Really great explanation, thank you

[bika]

Substance B, the one with the lower specific heat, will have the greater temperature rise. Specific heat tells you how much heat (in J) it takes to raise a unit mass (1 g) a unit temperature (1 K). Since the masses are the same (10 g), we can look only at 1 g of each {why can I do that?}. It takes 0.325 J to raise 1 g of substance B 1 K and it takes 0.650 J to raise substance A 1 K. So, for equal amounts of heat, B rises to a higher temperature. Now, your turn.
Give the formula for this. If you don't know the formula, use dimensional analysis. If you don't know dimensional analysis, come back and ask. So, please show your work.

You seem to be very talent in science. Which grade you got inscience?

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