State the building blocks for all the macromolecules
2 answers:
You might be interested in
Answer:
a) 26.65 kJ was the heat evolved by the reaction.
b) is the energy released on burning 1 metric ton of this type of coal
Explanation:
Heat capacity of the calorimeter = C = 20.5 kJ/°C
Initial temperature of the calorimeter, = 22.50°C
Final temperature of the calorimeter, = 23.80°C
The heat evolved by the reaction = Q
26.65 kJ was the heat evolved by the reaction.
0.875 g sample of anthracite coal was burned in a bomb calorimeter
0.875 g sample of anthracite coal gives 26.65 kJ of heat.
1 metric ton= 1000 kg
1000 kg = 1000 × 1000 g = 1,000,000 (1 kg =1000 g)
Then burning 1,000,000 g coal will give:
is the energy released on burning 1 metric ton of this type of coal
Answer:
See explanation.
Explanation:
Hello,
Haber process is defined as the widely acknowledged productive process of ammonia by the reaction:
Which is carried out in gaseous phase. Thus, by means of the Le Chatelier's principle, it is possible to know that its standard enthalpy of reaction is -45.90 kJ/mol (NIST webbook) for which it is an exothermic chemical reaction, for that reason less ammonia will be produced at high temperature, nonetheless, the temperature should not be too low since the reaction rate significantly decrease, therefore, the optimum found temperature is 450 °C.
Moreover, since there are more moles (3+1=4) at the reactants and less moles at the products (2), increasing the pressure of the reaction increases the yield of ammonia, nonetheless, higher pressures involve the purchasing of more expensive equipment to withstand the high-pressures, for that reason, the best found pressure has been set as 200 atm.
Best regards.
Answer:
Solution given:
c) Magnesium metal plus silver acetate (teachers note:
<u>Balanced</u><u> </u><u>chemical</u><u> </u><u>equation</u><u>:</u>
d) hydrobromic acid plus zinc metal (teachers note:
<u>Balanced chemical equation:</u>