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Alex787 [66]
3 years ago
13

g For each of the following cases, indicate whether the first entity is greater than, less than or equal to the second entity. W

rite 'G' for greater, 'L' for less and 'E' for equal (The letters must be in uppercase) Enthalpy of combustion of a fuel at STP Enthalpy of combustion of the same fuel at 20°C Enthalpy of formation of methane at STP Enthalpy of formation of methane at 1000 K and 100 kPa Enthalpy of combustion of gas propane with stoichiometric air Enthalpy of combustion of gas propane with 150% theoretical air. Adiabatic Flame Temperature of combustion reaction of liquid butane with equivalence ratio of 1.5 Adiabatic Flame Temperature

Chemistry
1 answer:
Marianna [84]3 years ago
7 0

Answer:

Explanation

check the solution in the attached

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An aluminum engine block requires 8669 kJ of energy for the temperature to rise from 75.0 °F to 195 °F. The specific heat of lea
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Answer:

The answer to your question is 144 kg

Explanation:

Data

Q = 8669 kJ

T1 = 75°F

T2 = 195°F

Cp = 0.897 J/(g°C)

m = ?

Formula

           Q = mCp(T2 - T1)

Process

1.- Convert temperature to °C

T1 = (75 - 32) / 1.8

   = 43/1.8

   = 23.9°C

T2 = (195 - 32) / 1.8

     = 163/1.8

     = 90.6°C

2.- Solve for m

            m = Q / Cp(T2 - T1)

3.- Substitution

            m = 8669000 / 0.897(90.6 - 23.9)

4.- Simplification

            m = 8669000 / 59.83

5.- Result

            m = 144893.66 g or 144.9 kg

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From the list of substances selected, Naci and NH4CL are good electrolytes because they will form ions in soluti True False​
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True. NH4CL is an ionic compound, and salts are strong electrolytes.
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If an endothermic reaction occurs in solution, the temperature of the solution will
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What SI Unit would best be used to express the height of your classroom ceiling?
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SI unit of length - meters
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When a substance is heated, what causes its properties to change?
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The molecules vibrate when the substance is heated, and the shape of the substance begins to form a different shape. For example: when you hear up metal it will melt becuase its molecules are changing and moving.

8 0
3 years ago
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