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    (standard enthalpy of combustion) ΔHc of pentane= 50kjmol^ -1
    calculate the ΔT you would expect to observe when 35g of pentane is used to heat 100g of water?
    u do the reverse??
    ( coud u put the working out please)
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    ΔE=mcΔT
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    (Original post by shreyli)
    (standard enthalpy of combustion) ΔHc of pentane= 50kjmol^ -1
    calculate the ΔT you would expect to observe when 35g of pentane is used to heat 100g of water?
    u do the reverse??
    ( coud u put the working out please)
    1. Find moles of pentane (you are given mass)
    2. Use moles to find actual energy released (you are given the value for energy per mole)
    3. Plug values into E = mcΔT
 
 
 
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