How much heat is required to raise the temperature of 1.5 x 103 g ...

[Gabby]

Question 1

How much heat (kJ) is evolved when 4.50 g of Fe₂O₃ is reacted with excess carbon monoxide using the equation below?
Fe₂O₃(s)  +  3CO(g)   →   2 Fe(s)  +  3 CO₂(g) ΔH°_rxn = – 24.8 kJ/mol,
◦ 0.699 kJ
◦ 2.10 kJ
◦ 17.9 kJ
◦ 24.8 kJ
◦ 112 kJ

Question 2

How much heat is required to raise the temperature of 1.5 x 10³ g of water from 45°F to 130.°F? The specific heat of water is 4.184 J/g·°C.
◦ 3.0 x 10¹ kJ
◦ 3.0 x 10² kJ
◦ 3.4 x 10² kJ
◦ 5.3 x 10² kJ
◦ 8.2 x 10² kJ

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[Gabby]

Thanks for the timely response, appreciate it

[Joy Chen]

Gracias!