Answer:
THE SPECIFIC HEAT CAPACITY IS 4.44 J/G C
Explanation:
Heat energy = 20000 J
Mass = 100 g
Change in temperature = 145 C - 100 C = 45 C
Specific heat capacity = unknown
In calculating the specific heat capacity, we use the formula:
Heat = mass * specific heat capacity * change in temperature
Re-arranging the formula by making the specific heat capacity the subject of the equation, we have:
Specific heat capacity = Heat / mass * change in temperature
Specific heat capacity = 20000 J / 100 g * 45 C
Specific heat = 20000 / 4500
Specific heat = 4.44 J/g C
The specific heat capacity of the substance is therefore 4.44 J/g C
Answer:
The correct answer is - option C. The equilibrium is shifted to the left and the value of K decreases.
Explanation:
The combustion of the methane produces water vapor, carbon dioxide when burns in presence of oxygen. This reaction also releases heat and light when combustion occurs.
CH4(g) +2O2(g)-----> CO2(g)+ 2H2O(g) + Heat
As this reaction releases the heat which means it is an exothermic reaction and as if the temperature increase, the equilibrium constant decreases, and as it decreases the equilibrium shifted to the left.
Thus, the correct answer is - option C.
Answer:
radiation is used in medicine, academics, and industry, as well as for generating electricity.
Answer:
Explanation:
Hello!
In this case, since the total heat flow due to the reaction equals the negative of the calorimeter's heat, we can first compute the former as shown below:
Now, since this total heat flow due to the reaction is defined in terms of the heat of reaction and the total reacted moles:
Thus, we compute the moles in 8.5 g of ethanol:
Therefore, the heat of reaction results:
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