What does the dew-point temperature of the product gases represent? How is it determined?

Is the air-fuel ratio expressed on a mole basis identical to the air-fuel ratio expressed on a mass basis?

What is the air-fuel ratio? How is it related to the fuel-air ratio?

A cooling tower with a cooling capacity of 30 tons (105 kW) is claimed to evaporate 4000 kg of water per day. Is this a reasonable claim?

How does the presence of moisture in air affect the outcome of a combustion process?

Is the number of atoms of each element conserved during a chemical reaction? How about the total number of moles?

Work with a partner to solve the following real-world problems. The screen on Lin's cell phone allows for 8 lines of text per message. The maximum number of characters for each message is 160. How many characters can each line hold? Draw a bar diagram and write an equation. Then solve the equation. Suppose Lin's cell phone allows 4 lines of text and a maximum of 80 characters for each text message. How would the bar diagram and equation change?

How does the presence of $\mathrm{N}_{2}$ in air affect the outcome of a combustion process?

What are the approximate chemical compositions of gasoline, diesel fuel, and natural gas?

Choose the best answer. Simplify. $- 5 + 35 \div y = - 12$ A. -7 B. 7 C. -5 D. 5

Write each polynomial in factored form. Check by multiplication. $x^{3}+7 x^{2}+10 x$

Show that the plane autonomous system

$$\begin{array}{l}{x^{\prime}=4 x+2 y-2 x^{2}} \\ {y^{\prime}=4 x-3 y+4 x y}\end{array}$$

has no periodic solutions.

Suppose you measure water potential

$$( \Psi )$$

in a 100-m-tall tree and its surroundings and obtain the results in the table. Note that gravity exerts a force of –0.01 MPa per meter of height above ground. Is the water potential in the leaf sufficiently low to draw water to the top of the tree?

The random variable x represents the number of phone calls received in an hour, and it has a Poisson distribution with a mean of 9. What is its standard deviation? What is its variance?