I should start by saying that I am a bit embarissed by asking such a silly question(adsbygoogle = window.adsbygoogle || []).push({});

By simply equating the mass-energy formula with the temperature dependence of heat...

M*c^{2}= M* c_{m}*ΔT

it strikes me as odd that the mass cancels,

c^{2}= c_{m}*ΔT

I was doing this in order to calculate how much mass is gained by heating say a cup of water up by a specific amount (I know it would be very small, but I was just curious of the order of magnitude). But it seems I cannot do this, so there must be something obvious I am missing.

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# Equating Heat and Einstein's equation confusion

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