How much heat is required to raise the temperature of 40.0 g of aluminum from 50.0 degrees C to 90.0 degrees C? The specific heat of aluminum is 0.895 joules per gram C

The answer to your question is  Q = 1432 Joules

Explanation:

Data

mass of Al = m = 40.0 g

temperature 1 = T1 = 50°C

temperature 2 = T2 = 90°C

Specific heat = C = 0.895 J/g°C

heat = Q = ?

Process

1.- Write the formula to calculate heat

              Q = mC(T2 - T1)

2.- Substitution

              Q = 40(0.895)(90 - 50)

3.- Simplification

              Q = 40(0.895)(40)

4.- Result

               Q = 1432 Joules

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.