How Much Energy Is Required to Heat 36

question 128

Multiple Choice

How much energy is required to heat 36.0 g H₂O from a liquid at 65 °C to a gas at 115 °C? The following physical data may be useful: Δ_vapH = 40.7 kJ mol^-1
C_liq = 4.18 J g^-1 °C^-1
C_gas = 2.01 J g^-1 °C^-1
C_sol = 2.09 J g^-1 °C^-1
T_melting = 0 ^∘C
T_boiling = 100 ^∘C

• A) 63.5 kJ
• B) 87.7 kJ
• C) 10.9 kJ
• D) 52.7 kJ
• E) 91.7 kJ

Comprehend basic medical terminology and its origins.

Identify the correct terminology for diagnosing diseases.

Recognize and use terms related to medical treatments and departments.

Understand the application of prefixes and suffixes in medical terminology.

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Definitions:

Materials Price Variance

The difference between the actual cost of materials and the expected (standard) cost, used for budgeting and cost control.

Actual Production

Refers to the actual quantity of goods or services produced during a specific period, as opposed to planned or projected amounts.

Materials Quantity Variance

The difference between the actual quantity of materials used in production and the standard quantity expected to be used.

Direct Materials Purchases Variance

The difference between the actual cost of direct materials purchased and the expected cost, based on standards set for quantity and price.