Ask question

Ask question

All categories

3 years ago

5

for the mini turbines to work properly, which of the following criteria are important in choosing the material for their constru

ction

1 answer:

Setler79 [48]3 years ago

3 0

Answer:

metal

Explanation:

metal strong

You might be interested in

When 1.045 g of CaO is added to 50.0 mL of water at 25.0 °C in a calorimeter, the temperature of the water increases to 32.3 °C.

Rus_ich [418]

Answer:

1.71 kJ/mol

Explanation:

The expression for the calculation of the enthalpy change of a process is shown below as:-

$\Delta H=m\times C\times \Delta T$

Where,

$\Delta H$ is the enthalpy change

m is the mass

C is the specific heat capacity

$\Delta T$ is the temperature change

Thus, given that:-

Mass of CaO = 1.045 g

Specific heat = 4.18 J/g°C

$\Delta T=32.3-25.0\ ^0C=7.3\ ^0C$

So,

$\Delta H=1.045\times 4.18\times 7.3\ J=31.88713\ J$

Also, 1 J = 0.001 kJ

So,

$\Delta H=0.03189\ kJ$

Also, Molar mass of CaO = 56.0774 g/mol

$Moles=\frac{Mass}{Molar\ mass}=\frac{1.045}{56.0774}\ mol=0.01863\ mol$

Thus, Enthalpy change in kJ/mol is:-

$\Delta H=\frac{0.03189}{0.01863}\ kJ/mol=1.71\ kJ/mol$

8 0

3 years ago

What is the resulting formula unit when aluminum (Al) and phosphorus (P) bond?

Delvig [45]

<span>aluminium phosphide AlP</span>

7 0

3 years ago

the latest weather report includes the following statement: the temperature is 78°f, barometric pressure is 29 and the relative

NeX [460]

Answer:

78

Explanation:

6 0

3 years ago

Which of the following is a property of a pure substance?

wolverine [178]

D.) the original components retain their individual properties

8 0

3 years ago

Read 2 more answers

algol [13]

Question 1 answer: A

Question 2 answer: H

Question 3 answer: J

Question 4 answer: T

8 0

3 years ago