When Butane (C₄H₁₀, 58 $\degree$ C to 100 $\degree$ C? Assume All the Energy from the Combustion Is Used

question 125

Multiple Choice

When butane (C₄H₁₀, 58.14 g/mol) is burned in oxygen according to the reaction below, 5755 kJ of heat is released.About how much butane should a backpacker carry if s/he needs to heat 1.50 L of water from 17 $\degree$ C to 100 $\degree$ C? Assume all the energy from the combustion is used to raise the water's temperature.[c_pwater) = 4.18 J/(g . $\degree$ C) ; d(water) = 1.00g/mL; c_p(butane) =1.69 J/(g. $\degree$ C) ] 2 C₄ H₁₀ (g) + 13O₂ (g) $\rightarrow$ 8 CO₂ (g) + 10 H₂ O(l)

• A)9.0 g
• B)5.3 g
• C)3.5 g
• D)22 g
• E)11 g