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When 5.0 mL of a 1.0 M HCl solution is mixed with 5.0 mL of a 0.1 M NaOH solution, temperature of solution is increased by 2^@C predicted accurately from this observation? |
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Answer» If 10 mL of same HCl is mixed with 10 mL of same NaOH, temperature rise will be `4^@C` 0.02c heat is evolved due to the neutralization or formulation of `(0.1 xx 5) = 0.5 m` moles of `H_2O` . (A) Heat evolved `= 0.04c= (20 xx 1 xx 10^(-3)) xx c xx DELTA T implies Delta T implies DeltaT = 2^@C [0.1 xx 10 = 1`m moles of `H_2O`formed] (B) No temperature rise as there is no neutralization (C) M moles offormedbut heat evolved will be less than 0.04c as is a weakbase. (D) SIMILAR to (C). [`CH_3COOH` is a weak ACID] |
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