Recent questions without an upvoted answer

 An adiabatic rigid and impermeable tank of volume $10 \mathrm{~m}^{3}$ contains air at $800$ $\mathrm{kPa}$ and $70^{\circ} \mathrm{C}$. The air is allowed to leave the ...

 Two $\mathrm{kg}$ of a gas is compressed in a process. Pressure $(P)$ and mass specific volume $(v)$ of the gas during the process follows: $P v^{1.2}=$ constant. The te...

Consider a single component fluid at saturation conditions having the following properties.Latent heat of vaporization, $h_{f g}=39.6 \times 10^{3} \mathrm{~kJ} / \mathrm...

 It is given that: $\left(\dfrac{\partial h}{\partial T}\right)_{P}=c_{p}$ and $\left(\dfrac{\partial h}{\partial P}\right)_{T}=(v-\beta T v)$. Here $h$ is the mass speci...

A stream of moist air enters an adiabatic saturator at $45^{\circ} \mathrm{C}$ and $101$ $\mathrm{kPa}$ and leaves as a saturated mixture at $30^{\circ} \mathrm{C}$. Make...

A rigid spherical solid ball at $1000^{\circ} \mathrm{C}$ is cooled slowly to $200^{\circ} \mathrm{C}$ in a surrounding air at $25^{\circ} \mathrm{C}$. The density, speci...

Consider an ideal Diesel-cycle with cold-air-standard assumptions to be applicable. The compression ratio is $20$ and the cut-off ratio is $1.8$. At the end of the compre...

A mixture of helium $\text{(He)}$ and nitrogen ($\mathrm{N}_{2}$) expands in a turbine from $800$ $\mathrm{kPa}$ to $100$ $\mathrm{kPa}$. The mixture composition is $40\%...

A rigid and impermeable tank has only moist air with a specific humidity of $0.025 \mathrm{~kg}_{\text {water-vapor }} / \mathrm{kg}_{\text{dry-air}}$ at $30^{\circ} \mat...

Which one of the following polymerization methods is used for the synthesis of butyl rubber?Ring opening polymerizationCondensation polymerizationCationic polymerizationA...

The stress-strain profiles in the figure were obtained following longitudinal tensile loading for a brittle polymer, glass fibre, and a composite lamina consisting of uni...

Norrish-Smith effect or Trommsdorff effect during free radical bulk polymerization at high conversion is characterized by $\_\_\_\_$.increase in rate of polymerization wi...

For a polydisperse polymer, the viscosity-average molecular weight $\left(\bar{M}_{v}\right)$ becomes equal to the weight-average molecular weight $\left(\bar{M}_{w}\righ...

Which one of the following is NOT a rotational rheometer?Cone and plate rheometerParallel plate rheometerCapillary rheometerCylindrical Couette rheometer

Select the correct option to match the Product with the most appropriate Processing technique from the table given below:ProductProcessing technique$\text{P}$Fibre-reinfo...

Which of the following is/are the most appropriate compatibilizer(s) for the ploypropylene/Nylon $66$ blend?Maleic anhydride grafted polystyreneMaleic anhydride grafted p...

Which of the following polymers is/are prone to hydrolytic degradation?Poly(ethylene terephthalate)PolypropylenePoly(lactic acid)Polycaprolactone

An insulating polymer is used as a dielectric medium between two capacitor plates. The dielectric constant of the polymer is $5.0$ and the permittivity of vacuum is $8.85...

Select the correct option to match the Polymer to its Major polymeric constituent from the table given below:PolymerMajor polymeric constituent$\text{P}$Natural rubber$\t...

Resol is produced by reaction of $\_\_\_\_\_\_$.phenol with an excess of formaldehyde in presence of a base catalystformaldehyde with an excess of phenol in presence of a...